Step 1

Prick potatoes all over and place on microwave turntable. Microwave on HIGH (100%) for 5 minutes, turning halfway during cooking. Cool for 5 minutes.

Step 2

Meanwhile, combine stock powder, onion powder, paprika and garlic powder in a bowl. Reserve 2 tsp of the mixture.

Step 3

Spray potatoes all over with oil and sprinkle with seasoning mix on both sides. Season with pepper. Place in air fryer basket. Cook at 180C for 25 minutes or until browned and tender, spraying with more oil halfway during cooking.

Step 4

Combine sour cream and half of the reserved seasoning mix in a bowl.

Step 5

Carefully cut a cross in the tops of potatoes. Top with butter, dollop with sour cream mixture and sprinkle with remaining reserved seasoning mix.